Computer Science 132
Introduction To Computing II
Dickinson College
Spring Semester 2000
Grant Braught
<![CDATA[
/**
* SuperClass.java -
* A super class for the demonstration of inheritance.
*
* @author Grant William Braught
* @author Dickinson College
* @version 4/5/2000
*/
class SuperClass {
// Class Data: It is fine to initialize the class
// data in its declaration because it pertains to
// the entire class.
private static int numSuper = 0;
// Instance Data: This is declared here and initialized
// in the constructors so that it can be unique for
// each instance of the object.
private int a, b;
/**
* Default no-arg constructor that initializes
* the instance data to 0 and increments the number
* of SuperClass objects in existence.
*/
SuperClass() {
a = 0;
b = 0;
numSuper++;
}
/**
* Constructor that provides initial values for
* the instance data.
*
* @param inita Initial value for instance data a.
* @param initb Initial value for instance data b.
*/
SuperClass(int inita, int initb) {
a = inita;
b = initb;
numSuper++;
}
/**
* methodOne
*
* @return the sum of a and b.
*/
public int methodOne() {
return a + b;
}
/**
* methodTwo
*
* @return a * b
*/
public int methodTwo() {
return a * b;
}
/**
* Return a string representation of the object.
*
* @return a string representation of the object.
*/
public String toString() {
return "numSuper = " + numSuper + "; a = " + a +
"; b = " + b;
}
}
]]>
SuperClass.java : javadoc documentation.